Mutriku is a wave farm on the Spanish coast of the Bay of Biscay that has now been continuously supplying electricity for more than nine years. Since 1979, there has been a growing trend in wave energy flux for the whole Bay of Biscay. ERA5 data at the grid point nearest to Mutriku indicate an increase of 0.146 kW/m per decade for the 1979–2019 period. In this paper, a Self-Organizing Map (SOM) with a 2X5 architecture has been fitted to identify ten major sea-state types, each with a distinctive electricity generation pattern at a daily scale. This rendered it possible to reconstruct the daily electric power that would have been generated if the Mutriku wave farm had been operational over the entire 1979–2019 period and, accordingly, evaluate the impact that the observed changes in the wave climate and associated wave energy flux would have had on the electricity production. The results indicate that the electricity production or power flow would have remained constant during that period despite the increasing trend in wave energy flux. This is due to the regulation procedures and mechanisms used in the operation of Mutriku's Oscillating Water Column (OWC) wave energy converters, which dampen the effect of the increasing trend observed. The main conclusion is that the power flow levels off above a given threshold, making it more stable than the wave energy flux.

Mutriku是位于比斯开湾西班牙海岸的波浪农场，现已连续供电超过9年。自1979年以来，整个比斯开湾的波能通量一直在增长。距Mutriku最近的网格点的ERA5数据表明，在1979-2019年期间，每十年增加0.146 kW / m。在本文中，已经安装了具有2X5架构的自组织地图（SOM），以识别十种主要的海州类型，每种类型的日发电量都有其独特的发电方式。这样就可以重建如果Mutriku波场在整个1979-2019年期间都在运行的情况下每天将产生的每日电力，因此，评估观测到的波浪气候变化和相关波浪能通量对电力生产的影响。结果表明，尽管波浪能通量有增加的趋势，但在此期间电力生产或潮流将保持恒定。这是由于Mutriku振荡水塔（OWC）波动能量转换器的运行过程中使用了调节程序和机制，从而减弱了观察到的上升趋势的影响。主要结论是，功率流在给定阈值以上趋于平稳，使其比波能通量更稳定。这是由于Mutriku振荡水塔（OWC）波动能量转换器的运行过程中使用了调节程序和机制，从而减弱了观察到的上升趋势的影响。主要结论是，功率流在给定阈值以上趋于平稳，使其比波能通量更稳定。这是由于Mutriku振荡水塔（OWC）波动能量转换器的运行过程中使用了调节程序和机制，从而减弱了观察到的上升趋势的影响。主要结论是，功率流在给定阈值以上趋于平稳，使其比波能通量更稳定。